Apparatus for making window patches

Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container

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493223, 493919, 493905, 493370, 493123, 156519, 156514, 1984711, 1986891, 271196, B31B 182

Patent

active

046420851

ABSTRACT:
Apparatus for severing window patches from a web of patch material includes a mechanism for applying adhesive to selective portions of the web, a pair of cooperating rolls to feed the web to the adhesive applying mechanism, a vacuum roll engaging successive window patches with adhesive, a severing mechanism cutting successive window patches of a pre-selected length from the web in spaced relation to a portion of the web engaged to the surface of the vacuum roll, a vacuum conveyor positioned between the adhesive applying mechanism and the severing mechanism to advance the web along a path from the adhesive applying mechanism toward the severing mechanism, a discharging end portion of the vacuum conveyor being spaced from the severing mechanism. The vacuum conveyor is constructed and arranged to transport the web from the adhesive applying mechanism, a pre-selected distance through the vacuum roll before the web is transferred to the vacuum roll and from the latter to the severing mechanism.

REFERENCES:
patent: 2660844 (1955-12-01), Schroeder
patent: 2956484 (1960-10-01), Subklen
patent: 2958437 (1960-11-01), Mengis
patent: 3410162 (1968-11-01), Ruggeri
patent: 3751324 (1973-08-01), Enskat
patent: 3957570 (1976-05-01), Helm
patent: 4291974 (1981-09-01), Silverburg

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